dolyame-ui-flatcorners@35.8.1

Analysis

dolyame-ui-flatcorners is a trojanized package that runs a multi-stage dropper on require. It fingerprints the OS/architecture, then downloads a second-stage binary from Cloudflare Workers C2 mirrors (oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe), with a DNS-TXT fallback channel via c[.]sdk[.]dl[.]wel1[.]ru. The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe on Windows) and executed as a detached background process. The package masquerades as "Common TypeScript definitions" / a UI library.